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Unified Diff: src/x64/assembler-x64.h

Issue 246075: Optimize calls to GenericBinaryStub (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 11 years, 2 months ago
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Index: src/x64/assembler-x64.h
===================================================================
--- src/x64/assembler-x64.h (revision 3027)
+++ src/x64/assembler-x64.h (working copy)
@@ -372,6 +372,11 @@
static void Probe();
// Check whether a feature is supported by the target CPU.
static bool IsSupported(Feature f) {
+ if (f == SSE2 && !FLAG_enable_sse2) return false;
+ if (f == SSE3 && !FLAG_enable_sse3) return false;
+ if (f == CMOV && !FLAG_enable_cmov) return false;
+ if (f == RDTSC && !FLAG_enable_rdtsc) return false;
+ if (f == SAHF && !FLAG_enable_sahf) return false;
return (supported_ & (V8_UINT64_C(1) << f)) != 0;
}
// Check whether a feature is currently enabled.
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